Scroll to see break-even price per barrel for oil in 2015 for select oil producers, and click on a country's name for more details. modest oil-price recovery and currency devaluations have lowered breakeven prices for countries like Russia and Nigeria, but some petrostates still need oil prices above $100 a barrel to balance their budgets.
There are dozens of types of gemstones â including diamonds, colored gemstones, and pearls â each with a unique set of physical and optical properties. GIRDLE â The narrow band around the perimeter of a polished or faceted diamond or colored gemstone.
Bloodstone is an opaque to translucent variety of chalcedony quartz. More specifically, it is classified as a variety of microcrystalline quartz. Bloodstone is characterized by its dark green color and the presence of red, blood-like inclusions, which is how it earned its descriptive gemstone name.Bloodstone is also known as ' heliotrope ' and 'blood jasper'. Bloodstone was once the original birthstone for March, but it was later replaced by aquamarine.loodstone's green body color is a result of dense inclusions composed of chlorite or hornblende needles. Bloodstone's color ranges from various shades of light to dark green and typically, the primary color is unevenly distributed, often exhibiting noticeable light and dark color zones.